IN THE WORLD OF RADIO
RADIO CABINETS
BUILT IN RIGA
Washington, April IT.—It is almost
unbelievable, hut thousands of radio
cabinets arc now being shipped from
I.atvia to the I'nited Stales, according
to a report by Commercial Attache C.
.1. Slayer of Riga, to the lumber <li
vision of the Department of Com
merce. These cabinets are shipped
unfinished and unassembled. They
are made by schoolboys in the tech
nical and industrial school at Riga,
who are reported to have shipped
several sets last year and are expect
ing to increase the shipments to sev
eral million sets.
New Esperanto Station.
Nearly all Europe will be able to
glisten In on Esperanto programs
when the station being planned by
Esperantist* is put into operation.
The station will he erected in
Switzerland, on the top of one of
the hills above Geneva, probably the
Salevc. It will broadcast in Esperanto
10 Germany Austria. Switzerland,
Italy, France and Spain.
The cost of erecting the station,
whieb will amount approximately io
MS.000, is to be subscribed by the
supporters of the international lan
guage.
Blind Radio Expert.
Capt. Ton Fraser, blind member of
the British parliament, is a radio ex
pert an«l makes receiving sets in his
spare time.
RADIO
v_j
I’roirnm for April 18.
(Courtesy of Radio Digest)
By The Associated Trees.
WKKI. Boston (silent).
WOR. Buffalo (silent).
KTW, Chicago. (536), 7. concert: *.
program: 9:05. Youths Companion; 9.35,
classic; 12. carnival
VVQX. Chicago Tribune. (3701.2), 6. or
Ran. 6:30, ensemble, string quintet; 8.
.ia7.7. hour; 10, dance.
WLS. Chicago. (,.“ 4 4 6), 7, lullaby time;
7:L*. barn dance: 11:16, organ
WEBH. Chicago Post, (370.2), 7. con
cert: 9. dame, readings, soprano, stories;
11. dance, songs.
WTAM, Cleveland, (389 4>. 7, entertain-,
•rs; 8. dance, novelty, baritone.
WLW, Cincinnati, (422.3), 9, eoncert,
lafafone: 7. band.
WFAA, Dallas New a, (475.9), 8:10, mr
ohestra; 11, dance.
WOC, Davenport, (484), 9, musical; 11,
orchestra. songs.
KOA. Denver. (322 4). 10, orchestra,
WHO, Des Moines (silent).
WW.T, Detroit (ailent).
WDAP. Fort Worth (silent).
PWX, Havanna, (400). 7 30, concert,
baritone.
KNX. Hollywood. (337). 8:15. instru
mental; 9:30. organ: 10. features; 12, or
chestra: 2. movie stars.
KTHS. Hot Springs Park, (874 .8), 8:30,
ccn'ert: 9:15. fiddle band: 10.15. dance.
WRIT, Iowa City. ( 483.6). 7;30. choir.
WOS, Jefferson City, 1440.9), 8. special
music.
WI) A F. Kansas City Star. <363.6>, 6,
School of l he Air; 11:45. Nlghthawka.
'VRF.U, Lansing. (385.5). 9. orchestra.
KHJ. I.os AngeleM. ( 405). 8. concert;
8 50, children; 9:30, instrumental; 10. vo
te!. instrumental; 12. orchestra; J, Lost
A r eels.
KFI. Los Angeles < 463.6), 3 45. talk;
9 orchestra; 9:45, talk; 10, community
program; 11, Instrumental, vocal; 12. pop
ular songs.
WHA8, Louisville Journal, (899.8), 7:30,
concert.
WCCO, Minneapolis St Paul (416.6):
8. philosophies; 8:30. shrine band: 10.
dance, vocal.
WMC. Memphis Commercial Appeal
(499.7): S:3<1. orchestra.
WEAK. New York <491.5): 6. services;
6:30. trips ami adventures; 7. pianist;
8:10, violinist; S;20, quartet; 8:30, harp*
ist • 11*. orchestra.
WJZ. New York (434.3): 6. concert;
7. musical; 7:30. baritone. 9:30. dance.
WHX. New York (Ml 2): 6. danca;
0:39. health talk: 6:56. orchestra; 7:30,
dance; 8:15. entertainers
WcAT,. Northfield < 336.9): 12. vlolinat;
vocal, pianiat. f
KOO. < vakland (361.2): 6. concert: 10,
vocal, instrumental, symphony; 12. dance.
WO A W. Omaha (626): dramatic;
r* 15. orchestra; 7:30. address: 9. pro
gram; 11. Nightingales: 11:30. organ.
KDkA, Pittsburgh (309 ]): R;45, Bible
helps: 7. Sphinx club: 7:3<»; coneit.
WCAK. Pittshnrgh (461..;): 6:30. Uncle
Kaybee; 7:30. harmony four, ukulele,
string entertainers
KOW, Portland Oregoman (491.5):
12. Strollers.
WK1. Philadelphia (394.5): 6. talk: 7.
onr-ert . s. recital; 9. orchestra
WIT. Philadelphia (508.2): 6. talk: 7
talk; 7:15, concert; 7:45. talk; 8. talks;
9;0j. .orchestra: 10:05. reltul. +
KPO. .San Francisco (429.5): 10 or
chestra.
W(; Y. Srh enact ad v (379 '): 7. Frenli
Program, address; 8:30. orchestra.
« Seattle Post Intelligencer
(-44): 8 plav review.
KFOA. Seattle (454.3): 8. concert: 8 45.
10:30. .lance: 12:05. dance.
W UZ. Springfield (333.3); 6:15 his
tory; 6:30., concert; 7. Paul Revere s an
n,icur?ryi. 8:l° orchestra; 9 :05. baritone.
KHJ). f(t. Louis I’ost Dlspath (545.1);
3. dance.
/ -— ■ . ^
WO AW Program |
v---—— _/
Haturilur. April IP.
• ■: 4.» P. .Vf. — Public ii.m period con
ducted by KiirChm Konccky.
*’• „ « Drira»llc hour, Davl*
hiu.llo O f Kxprr.slon, direction of Kllcn
Male Davis.
Heading. "The Runaway'' . ...J. W. Riley
Mary (Sweetness) Bauer*.
Selections.
JE>av.1" "nfI J- Simmons Davie.
- n? w ‘Adame* orchestra.
i :00 P. M.—Art Hendry and hie or
' nest ra.
. TO P. M. Weakly address, under aua
P'C*" ®L nmaha chamber of Commerce.
. Program under auspl. es of
♦ he Omaha Printing Co.
Piano duet. Peei tjvnt Suite'*. Orieg
Helen Ma kin Mthelia Kinder.
Tenor solo, "Denny Bov" ... Weatherly
Hull c In vis.
Nccompanled by M u Sister* String
ouartet.
St ring >i ua rl *• t :
<ai ' Roheinjan l -Ik Song" Kftssmaver
/hi "Drink to Mo only with Thine
®J'*8 ’ • • .lohnsoti
H eat. sisters
Madg* West. Hutplmn, fn»t violin.
\ivian M’eat, second violin.
Klolse M'*at. -ell..
.Soprana aolo. '•Wings of the Night" Watt*
M*he| Allen Small*.
Violin aolo. "Forsaken" Wlnterolt*
Mail go West Sutpbon,
Baritone aolo, "Hong l» Ho Mid" , .Terry
Ray Sage.
Cello obligato. Belle \,,n ManafeMe
Flano aolo, "By tlie s« a S. hubert IJsxl
_ Harry Co»Ure||
Bnprano aolo, Aria, "Ileatdoua." from
Heroeade .Maaaenet
Mrs. Harry Steele
Blrlng quartet, "Spanish Dance" Albanex
^ Meat alsters.
Baritone solos
<a) ‘'Drumwdoon" . ..Sanderson
♦,b) "The Hast Hour" .Krnmer
Harry Cooper.
Don Kynett, piano.
Cello ao«o. "To the Kvenlng star,"
from Tannhsuser. . ...M'agner
Belle von Manefelde
Soprano aolo, "Welcome. Sweet Wind" .
...... Cadman
Mahle Allen Smalls.
Violin aolo. "Tambourine • ...Krelaler
Madge Weal Sutphen
Tenor aolo, "Mh. Ask of the Stars.
Beloved" . . . I.a Forgge
Hall rjovls
Accompanied py M est histeis String ouartet
String quartet. "Molly on the Shore ' . .
. Grainger
West elstera
Baritone ar lo. "The Yesterday* ” .Cockrell
Rfc' Sfige
Cello obligato Ile||* von Manefelde
Cello solo, "’enetlan l,nve Song" Nevln
ReJIe von Manefelde.
Pep-ano s..|o "|oiek * Drundahl
Mrs Harry Sleelc
Bison solo V;»l»e." V Minn Chopin
Marry Cockrell
• ’ring quarts! nn I piano. "Yalae Trlste"
. . ■! halloa
M'eet jMetara Hid Nirrj Coekrell
A' ' 'imi"tinlr I'.l-'-c (test M-Ni-h-ls and
i1 ari
Ml8' r M I rank W llodcU. Jt . and
tie N^h tinge le oirheatrft. (
Three Tube Reflex Brings in “DX” Stations
★ ★★ ★★★ ★★★ ★★★ ★★★ ★★★ ★★★ ★★★
New York Couples Dance to Orchestra Music Broadcast From Miami
V-—
By WILLIAM A, NCHI I)T, Jr.
□' IS AVKKIS right at the height
of our dancing as one of the
local stations signed off for
the evening. We concluded that
there would be no more dancing that
night, at least not through tlie
medium of a radio orchestra. How
ever, we must have made a mistake,
for a slight turning of the dials
brought in the familiar strains of a
popular fox trot. Surely this was
not a DX station; It must he one of
the locals that we missed earlier
in the night. And so we went on
with tho dnnce.
At tlie finish of the selection every
one present was startled to hear The
old familiar voice say: "W-.M-H-K,
'way down in glorious .Miami Beach,
Fla. Down where all is June time,
broadcasting from tlie Fleetwood
hotel.” “Down where all is .lune.”
And here we were In New York on
a cold March night dancing to the
time of an orchestra playing in a
■ 1 ■
and one-half inches from I lie bottom
is placed the 10 ohm rheostat, with
which {o control two tubes. Midway
between the rheostat and the edge of
the panel the crystal detector should
be placed, supposing, of course, that
the detector is panel mounted.
Placing Apparatus.
The phone jack is mounted directly
below the crystal detector. However,
if binding posts be used in its place,
they are an inch and oneMialf apart,
placed under the detector.
Might small holes are drilled along
tlie panel, one-quarter inch from the
base for screws to the baseboard.
After the baseboard is made secure
to the panel begin placing the ap
paratus.
The first It. K. transformer, which
is one of the type It 140. is placed on
the extreme right hand end of the
set (as you face the interior from
the rear) and at such an angle that
its primary binding posts will serve
as the aerial and ground binding
■Ill . ■ ■■■ ■ . .1. ■ I I.. I..— I ■ I- ■ .1 - ■ — - ■ I ✓
posts coming through, two on each K-201A) three and one-half inches to
side of the shell. the left of the audio transformer.
Measuring from center to center, And three inches to the left of this
tlie second tuned It. K, transformer is the last audio transformer, with its
mounted four inches from the first, corresponding tube socket directly
with its corresponding tube socket behind it.
will reveal that it Is no more com
plicated than any neutrodyne. On
the other -hand, it is imperative that
all connections be made carefully and
as shown in the diagram.
A few, words regarding the makes
of the various instruments used in
tills set will not he amiss here: The
variable condensers need not he of
any specific manufacture, so long as
they are of low-loss design and are
of ,0002."i min-farad capacity.
The two rheostats should be well
constructed and lie purchased from a
manufacturer who can lie depended
upon to sell reliable, well made in
struments.
oj jo
p|S
t .
hotel located In the far corner (ft
Florida.
Of course I here Is nothing wonder
ful about such reception, hut when
>ou stop to consider the fact that
only a three tube set was being used
and In the heart of the city, you may
agree that pcrhaiis it was rather good
reception, at that, to be able to hear
the station all over the house.
Nor was that all the DX. When
W41BF had concluded its program
and signed off we Immediately
combed the ether for more fox trots,
but were not so successful to this
end. sinefc the next station was broad
casting church music. It nas WHO,
Kansas City.
Of Course, If Was a Reflex.
Now, before we go any further, we
might as well confess that three-tube
set used was a reflex, employing a
crystal detector. In other words,
three tul>es doing tile work of four.
The set has two stages of radio fre
quency amplification and two stages
of a lirflo.
Undertaking the construction of
such a set a few years ago would
shock \lie average radio fan. Today,
however, the receiver can bo con
structed and hooked up in one day, If
not in less time.
To further simplfy the building and
eliminate the difficult winding of the
speclnl Inductances we urge th» use
of ready-made, specially designed
radio frequency transformers.
Panel I .ay mil.
As in the construction of any other
receiver, so it is with this, a card
board template should first lie cut
the exact size of the panel and then
the measurements laid off on this.
When the template hns been made
fast upon the face of the panel, the
markings may be impressed on- it
with a center punch.
Tlie first variable condenser is
mounted two and three-quarters
inches in from the left hand side of
the panel and three and one half
Inches down from the top. Three
inches to the right of this variable
condenser and two Inches from the
bottom of the panel the .10 olnn
rheostat Is placed. Next, three inches
to (he right of the rheostat, and three
and one half liidies from the top i t
the panel, mount the second variable
condenser.
Four ami one half Inches from the
right hand side of the panel and three
HAMMOND GETS
RADIO PATENT
Washington, A pi ll 17. A patent tvns
granted by the patent office during
the last week In John Ilayes Ham
mond, Jr., of Olouceater, Mass., cov
ering apparatus for controlling a mov
ing object bv groups of sound waves
having a predetermined wave frequen
cy and predetermined group Of fre
quency, functioning in a receiving
system for controlling a movable body
In response to sound waves. The do
vice la Intended to provide an Im
proved system for the control of suit
msrlnes an.l an Improved system of
submarine mins sweeping.
Causes of Inaction.
When no hIkohI can be hoard on
the defeetnr and no either mildew, the
trouble may be r.iuMd by a mhort
circuit nf the phone condenaer. run
»lnwn Imttfilre, battery polarity it
veraed. broken connection in phono
corn or act, poor *n<'k«*( contact, 01
poor contact In pliouc |flug or jmt.
*«9TO<'
posts. Directly behind this, trans
former, fasten the first It. K. tube
socket. These tuned H. !•’. trans
formers are designed espe* tally for
use with this sort of circuit. .The
primary and secondary are placed
within a brown hakelite shell, with
the leads attached to four binding
placed between It nml the panel This
transformer Is placed parallel to the
panel.
Directly behind the second variable
condenser, one of the audio trans
formers is mounted. Attain tneasur
itiR from center to center, mount the
self tuned it. F. transformer (type
The binding poet strip is ligated at
the rear of the mibpatte), just slightly
to the left of the center. (See photo
of Interior*.
Referring to the schematic wiring
diagram In the center of the pages,
"lie might believe the circuit ratfc r
difficult. Careful scrutiny, though.
1 1 ^
- ■
\
Above—Schematic wiring diagram.
Ml constants are clearly marked. The
II. I', transformer* should he eon
netted exactly a« shown in the hook
up.
Top photograph of the three tulte re
flex shows the panel layout. The
variable crystal detector is shown at
the extreme right hand side of the
receiver.
Interior view of the completed three
tube reflex receiver. \ good idea of
the correct placement of the various
instruments can b-- gained from this
photo.
In til** tadio frequency stages, A11
A inert tu transformers are recom
mended. The audio stages will work
well with any carefully constructed
audio frequence transformer.
When we take into consideration
the tube socket we have something
that has always been one of the fea
ture* of the “gyp'' artists. If a re
t-elv er U designed for low-loss quail
She Home of the AMPICOHHHRSMiMBM£j
CLEARANCE I
rated to capacity, touching up and refinishing most all of these H
ixish some of them from brand new ones you are more clever ■
lemand for "top grades” at this time, is the thing responsible ■
when it comes to disposing of these "fine trades” it is im
; to the sacrifice. This, of course, is your gain. And the pf
1RANDS iWlPk I
Kimball.$785 ■ ' • •. j :M
nt Terms aJjip|PfcPI<jJ 1
piano—use it in your if
e you want a brand new i
what you have paid on it. ! I
USED UPRIGHTS
Cline .$115
Mathushek. $ 95
Kohler & Chase.$120
Hospe . $125
Kimball .$120
i Schaeffer.$155
■ f Mueller .$100
Stultz & Bauer .$170
Cable Nelson.$185
Krakauer..n.$195 |
Krakauer.$170 ;
USED PLAYERS
Pianist* . $310
Milton ...$325
Foster St Co.... $395
Cable Nelson.:. $ 11 5
Vallmer .$385
Cable Nelson. 8105
Apollo . 8185
Schumann . 8 19.5
Oulbransen . $525
Schumann . $.505
Apollo .$595
R. S. Howard.$525
Bianos had graced homes of great wealth and beauty. Many from 3
f new homes and desired a different style of piano to correspond rj
urnishment ard interior decorations. But the tone, action and II
ied Pianos make them values you can never hope to sec dupli
i are never numeroT* even in a lifetime. ia
annot Call—Write for Details, Including Terms 9 ^
SPE CO. DOUGLASJ
Ills Home tiis ^MTiC0DI9B9ftNUiyMH
lies and a “mud socket'1 Is employed
in the detector circuit, or In fact,
throughout the whole set, all the low
loss apparatus used In conjunction
wilh It becomes useless. It Is rather
difficult for the average radio fan
to pick out a good tube socket from
the thousands of various makes which
he has to pick from In a large city.
However, there is one good plan that
holds when purchasing any type or
form of radio equipment.
Always keep your eyes open when
visiting radio dealers. Notice what
equipment they use in their own set.
Judge front the actual results—If it
sounds good, purchase the make of
apparatus used in the exhibition set.
But that is getting slightly off our
subject—we started to tell of the best
method to buy radio equipment.
In our estimation, the best method
is to purchase the products of an old,
i well-Knqjvn, reliable manufacturer.
There are 10 dr 12 vt>ry well-known
companies who put out exceptionally
fine radio apparatus. It is not cus
tomary for the real business com
panies to place poor quality apparatus
at the disposal of the country and
thereby jeopardize their standing
with the radio public.
The reflex set described In this ar
tide is also put up in the form of a
semi finished set. where the apparatus
is all mounted on the panel and base
hoard, hut not hooked up. In this
manner thft fan can construct the out
fit by simply wiring it and yet have
the satisfaction of saying that he
built bis own receh er.
-- '
Necessary
Apparatus
A list of apparatus necessary for
the construction of this ideal three
tube reflex follows:
Two All-American type R-140
tuned K. K. transformers.
One All-American type R-70I, a
self-tuned R. T. transformer.
One 10-ohm rheostat.
(hie 10-ohm rheostat.
Three tube sockets.
One crystal detector.
Two All-American audio trans
formers.
Two .00025 microfarad variable
condensers.
One hard rubber panel. 7x18
inches.
One wooden baseboard. 7x17
Inches.
One .0001 microfarad fixed con
denser.
One .00075 microfarad fixed con
denser.
sj\ binding posts mounted on a
hard ruhher strip.
Two separate binding posts for
loud speaker of one single jack.
Two attractive dials.
Necessary Inis bar anil Ingenuili
x/
When contpleted, the outfit is op
erated with the usual "A " and “R"
batteries together with three standard
six volt vacuum tubes and a good
loud speaker.
An antenna of about 50 or f.O feel
In length will operate best with the
reflex. However, very fine volume
and "DX" cun l>e picker! up with an
Indoor aerial strung around the pic
ture moulding of the room. AI>out *'
or 70 feet run arouttd the room in
this manner will make a very effi
dent system.
Interstage coupling between the
two tuned TJ. F. transformers js con
trolled to some extent by mounting
ihe first H. F. transformer in a
swivellike martyr. so that it can he
adjusted to the position where it will
I give the lest results.
Adjusting Set.
First, tune In some near-by station
to maxttnum signal strength. Then,
listening in the headphone#, turn off
entirely the first rheostat. The signal
will probably continue to be heard,
owing to coupling between the two
couplers. To eliminate this, rotate the
first coupler slightly. When a posi
tion is finally found where no signal
is heard, fasten the first coupler per
manently In this position and do not
again disturb it.
Reduced Fare.
Fare and one half for tile rounu
nip, Omaha to Chicago, account
Woman's World Fair April 17 to
25; tickets on sale April 17. 21 and 24,
with return limit midnight April 27.
Excellent service, leaving Omaha 8 p.
m., 7:32 p. m., 7:3a p. m., and 8:15
p. m.
Chicago * North tv • -tern Knilroad.
G. \V. 11AI.E, General Agent,
ill.'! Fa mam St.
BEPPEO
y I I -wi.rrfgj
1415-17 Douglas 5t.
If You Need 6
Months to Pay—
Beddeo Will Give
It to You—
That's the foundation of
our big, liberal Credit *
Service which we want
every man and woman in
Omaha to enjoy.’ That's
the ba«is on which we so
licit your account on our
book?. Outfit yourself
and family from head to
foot. We'll arrange the
payments so they will be
easy to meet.
BUY ON PAYMENTS
Right now our stocks are
at their best, and the
prices which prevail af
ford the most pronounced
money savings. Make to
morrow your clothes buy
ing day at Beddeo's.